apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: guestbook
    tier: frontend
  name: frontend
spec:
  progressDeadlineSeconds: 600
  replicas: 10
  revisionHistoryLimit: 10
  selector:
    matchExpressions:
    - key: tier
      operator: In
      values:
      - frontend
  strategy:
    rollingUpdate:
      maxSurge: 100%
      maxUnavailable: 25%
    type: RollingUpdate
  template:
    metadata:
      labels:
        app: guestbook
        tier: frontend
    spec:
      containers:
      - env:
        - name: GET_HOSTS_FROM
          value: dns
        image: gcr.io/google_samples/gb-frontend:v2
        imagePullPolicy: IfNotPresent
        name: php-redis
        ports:
        - containerPort: 80
          protocol: TCP
        resources:
          requests:
            cpu: 100m
            memory: 100Mi
        terminationMessagePath: /dev/termination-log
        terminationMessagePolicy: File
      dnsPolicy: ClusterFirst
      restartPolicy: Always
      schedulerName: default-scheduler
      securityContext: {}
      terminationGracePeriodSeconds: 30